경수로 핵연료 지지격자의 동적 좌굴강도 해석(II)

Dynamic Crush Strength Analysis of a Spacer Grid Assembly for a LWR Nuclear Fuel Assembly(II)

A spacer grid is one of the most important structural components in a LWR nuclear fuel assembly. The primary considerations are to provide a Zircaloy spacer grid with crush strength sufficient to resist design basis loads, without significantly increasing pressure drop across the reactor core. In this study, the dynamic crush strength analysis and test are carried out for the specimens of a spacer grid assembly.